Troubleshooting Tip: How to fix error 'Conflicts with NAT translate to address' when adding Link Load Balance's Gateway IP

[Khidzir_MN]

Description	This article describes how to fix the error 'Conflicts with NAT translate to address' when adding the Link Load Balance's Gateway IP.
Scope	FortiADC and FortiADC-VM
Solution	FortiADC will prompt the error if the Link Load Balance's Gateway IP is the same as one of the NAT Source IP addresses. (Translation to IP Address). Go under Network -> NAT -> Source: This is currently the expected behavior. Using the gateway IP as the NAT Source IP address (Translation to IP Address) on FortiADC may break the return traffic, as responses might be routed only to the gateway device without continuing to FortiADC, since the IP resides on the gateway itself, preventing proper delivery back to the source (FortiADC). If the Link Load Balance's Gateway IP is required to use the same IP as the NAT Source IP address, use a different IP for the NAT Source IP to avoid the error. Related documents: Configuring source NAT Configuring gateway links